sign·post / ˈsīnˌpōst/ • n. a sign giving information such as the direction and distance to a nearby town, typically found at a crossroads. ∎ fig. something that acts as guidance or a clue to an unclear or complicated issue: there are few unambiguous signposts for doctors facing ethical issues.• v. [tr.] provide (an area) with a signpost or signposts: most of the walks were well signposted.